ref: ba6ad8ddabdf363f0053ce859d59b6ff097d880d
dir: /unix/u.h/
#pragma once
#include <assert.h>
#include <fcntl.h>
#include <math.h>
#include <setjmp.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
typedef unsigned char uchar;
typedef long long vlong;
typedef unsigned long long uvlong;
typedef uint8_t u8int;
typedef uint16_t u16int;
typedef int32_t s32int;
typedef uint32_t u32int;
typedef uintptr_t uintptr;
#define OREAD O_RDONLY
#define OWRITE O_WRONLY
#define OCEXEC O_CLOEXEC
#define OTRUNC O_TRUNC
#define AEXIST F_OK
#define seek lseek
#define nil NULL
#define USED(x) (void)(x)
#define nelem(x) (int)(sizeof(x)/sizeof((x)[0]))
#define sprint sprintf
#define snprint snprintf
#define vsnprint vsnprintf
#define cistrcmp strcasecmp
#define cistrncmp strncasecmp
#define getcallerpc(x) nil
#define getmalloctag(p) (USED(p), 0)
#define setmalloctag(p, t) do{USED(p); USED(t);}while(0)
extern char lasterr[256];
#define werrstr(fmt, ...) do{snprint(lasterr, sizeof(lasterr), fmt, __VA_ARGS__); }while(0)
char *seprint(char *, char *, char *, ...);
int nrand(int);